The Role of Hox Genes in Axial Patterning in Hydra1

Hans R. Bode

doi:10.1668/0003-1569(2001)041[0621:TROHGI]2.0.CO;2

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Hans R. Bode^1,*

¹Department of Developmental and Cell Biology, University of California, Irvine, California 92697

^*hrbode@uci.edu

Abstract

Hox genes in bilaterians specify distinct regions along the anterior-posterior axis. A question of interest is when in metazoan evolution did this class of genes take on this function. Hox genes have been isolated from a number of cnidarian species including hydra. The expression patterns of two of them, Cnox-3 and Cnox-2 have been examined in adult hydra. Cnox-3, a labial homologue, plays a role in oral/anterior patterning, while Cnox-2, a Deformed homologue or a Gsx homologue of the ParaHox cluster appears to repress anterior patterning in the body column. The two genes play a role in axial patterning that is consistent with the tissue dynamics of an adult hydra.

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Hans R. Bode "The Role of Hox Genes in Axial Patterning in Hydra," American Zoologist 41(3), 621-628, (1 June 2001). https://doi.org/10.1668/0003-1569(2001)041[0621:TROHGI]2.0.CO;2

Published: 1 June 2001

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